Comparison of AMD Radeon HD - FirePro D300 Compute Engine and GeForce GTX 775M Mac

Attribute	AMD Radeon HD - FirePro D300 Compute Engine ×	GeForce GTX 775M Mac ×
GPU
Release year (year)	2014	2013
GPU brand	AMD	Nvidia
GPU name	Pitcairn	GK104
Market	-	Laptop
Clock speed (MHz)	850	797
Is dual GPU	-	-
Model	AMD Radeon HD - FirePro D300 Compute Engine	GeForce GTX 775M Mac
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	162.6	160
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,270	1,250
Effective memory clock speed (MHz)	5,080	5,000
Noise and power
TDP (W)	150	100
Raw performance
Pixel rate (GPixel/s)	27.2	22.32
Render output processors	32	32
Texture mapping units	80	112
Shading units	1,280	1,344
Floating-point performance (GFLOPS)	2,176	2,142
Compute units	20	-
Texture rate (GTexel/s)	68	89.3
Benchmarks
Particle simulation (mInteraction/s)	307	280.4
T-Rex (Compubench 1.5) (frames/s)	1	3.11
Video composition (frames/s)	70.69	56.67
Face detection (mPixels/s)	48.05	30.36
T-Rex (GFXBench 3.0)	3351.76	3357.2
Manhattan (GFXBench 3.0)	3712.58	3716.26
Bitcoin mining (mHash/s)	242.18	66.6
Ocean surface simulation (frames/s)	1192.55	1075.94